油液分析技术包括油液本身物理化学性能分析和油液中不溶性物质的分析。润滑剂的性能与状态直接影响机器摩擦副的磨损状态，对磨屑与污染物的检测是监测摩擦副本身工作状态的手段。通过油液分析监测和诊断工程机械故障情况，无需拆机或安装传感器，易操作，信息量大，但需要有 Oil analysis techniques include the physical and chemical properties of the oil itself and the analysis of the insoluble materials in the oil. Lubricant performance and status directly affect the wear status of the machine friction pair, the detection of debris and contaminants is a means of monitoring the working status of the friction pair itself. Through the oil analysis monitoring and diagnosis of construction machinery failure, without disassembling or installing the sensor, easy to operate, large amount of information, but need to have